Home / 9,159.37-13,730.80-3,311.88

Finding the Fourth Proportional to 9,159.37, 13,730.80 and 3,311.88

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Solution

The fourth proportional to 9,159.37, 13,730.80 and 3,311.88 is: 4,964.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,159.37 : 13,730.80 = 3,311.88 : x
  2. Step 2: Convert to fraction form
    9,159.37/13,730.80 = 3,311.88/x
  3. Step 3: Cross multiply
    9,159.37x = 13,730.80 × 3,311.88
  4. Step 4: Simplify right side
    9,159.37x = 45,474,761.90
  5. Step 5: Solve for x
    x = 45,474,761.90/9,159.37
  6. Step 6: Final answer
    x = 4,964.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.